Thanks for your previous reply in the past period of time static err_t ftp_data_open(ftp_session_t *s, struct pbuf *p) { err_t error; char *ptr; ip4_addr_t data_server; u16_t data_port; // Find server connection parameter ptr = strchr(p->payload, '('); if (!ptr) return ERR_BUF; do { unsigned int a ...